WO2019153139A1

WO2019153139A1 - Radio link failure handling method and related product

Info

Publication number: WO2019153139A1
Application number: PCT/CN2018/075617
Authority: WO
Inventors: 石聪
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-02-07
Filing date: 2018-02-07
Publication date: 2019-08-15
Also published as: EP3592097A4; WO2019153517A1; EP3592097A1; CN111278167A; TW201935950A; AU2018407354A1; US20200053826A1; US20220369420A1; CL2019003137A1; ZA201906994B; US20200367312A1; KR20200117835A; US11425784B2; JP7341063B2; BR112019022854A2; CN111278167B; CN110720255A; EP3592097B1; US11930554B2; SG11201908170YA

Abstract

Disclosed in an embodiment of the present invention are a radio link failure handling method and a related product. The method comprises: if an RLC layer/entity has reached a maximum retransmission count, a terminal triggering, according to a configuration of the RLC layer/entity, a communication failure procedure. In the embodiment of the present invention, configurations of different RLC layers/entities are distinguished to trigger different radio link failure procedures, thereby minimizing occurrence of link interruption, and enabling timely recovery of a failed link.

Description

Wireless link failure processing method and related products

Technical field

The present application relates to the field of communications technologies, and in particular, to a wireless link failure processing method and related products.

Background technique

In a wireless communication system, a terminal detects a signal quality of a neighboring cell using the carrier according to carrier information transmitted by the network side. For a carrier aggregation system such as a long-term evolution advance (LTE-A) system, a terminal may have multiple carriers serving it at the same time, and carrier aggregation under one base station is called an aggregated cell. When the aggregated cell provides services for the terminal, the terminal can simultaneously use multiple uplink and downlink carriers for data transmission. If only part of the carrier (uplink and/or downlink) has a radio link failure, the terminal can still communicate with the base station through other carriers that have not failed. Only when the radio link fails on all carriers (downlink and/or uplink), the terminal determines the radio link failure and initiates a Radio Resource Control (RRC) connection re-establishment procedure to recover the signaling with the base station. connection. In the current discussion of the new radio system, for the RLC entity, if all the cell groups configured by the corresponding logical channel are secondary cells, when one of the RLC SDUs of the AM RLC is retransmitted to the maximum number of times, the triggering may not be triggered. RRC reconfiguration, and only need to report the retransmission to the maximum number of events, thereby reducing the impact of reconfiguration on the terminal. However, there is currently no discussion on how to configure the RLC entity accordingly.

Summary of the invention

The embodiment of the present application provides a radio link failure processing method and related products, which can trigger different radio link failure processes by differentiating different RLC layer entity configurations, thereby reducing link interruption and timely chaining. The road failed to recover.

In a first aspect, the embodiment of the present application provides a radio link failure processing method, which is applied to a terminal, where the terminal includes a logical link control RLC layer entity, and the method includes:

When the RLC layer entity reaches the maximum number of retransmissions, the communication failure process is triggered according to the configuration of the RLC layer entity.

In a second aspect, an embodiment of the present application provides a terminal, where the terminal has a function of implementing a behavior of a terminal in the foregoing method design. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. In one possible design, the terminal includes a processor configured to support the terminal in performing the corresponding functions of the above methods. Further, the terminal may further include a transceiver for supporting communication between the terminal and the network device. Further, the terminal may further include a memory for coupling with the processor, which stores program instructions and data necessary for the terminal.

In a third aspect, an embodiment of the present application provides a terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory, and configured by the The processor executes, the program comprising instructions for performing the steps in any of the methods of the second aspect of the embodiments of the present application.

In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute as implemented in the present application. Some or all of the steps described in any of the methods of the first aspect.

In a fifth aspect, an embodiment of the present application provides a computer program product, where the computer program product includes a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to execute Apply some or all of the steps described in any of the methods of the first aspect of the embodiments. The computer program product can be a software installation package.

It can be seen that, in the embodiment of the present application, when the RLC layer entity reaches the maximum number of retransmissions, the terminal triggers a communication failure process according to the configuration of the RLC layer entity. The configurations of different RLC entities may be different, so that the terminal can distinguish different RLC layer entity configurations to trigger different radio link failure processes, so as to minimize the radio link interruption of the terminal and timely fail the link. Recovery is beneficial to improve the reliability of wireless communication of the terminal.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The drawings to be used in the embodiments or the description of the prior art will be briefly described below.

1A is a network architecture diagram of a possible communication system according to an embodiment of the present application;

2 is a schematic flowchart of a method for processing a radio link failure according to an embodiment of the present application;

3 is a schematic flowchart of a method for processing a radio link failure according to an embodiment of the present application;

4 is a schematic flowchart of a method for processing a radio link failure according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

By way of example, FIG. 1A illustrates a wireless communication system to which the present application relates. The wireless communication system 100 can operate in a high frequency band, is not limited to a Long Term Evolution (LTE) system, and can be a 5th generation (5G) system and a new air interface (NR) in the future. System, machine to machine (Machine to Machine, M2M) system. The wireless communication system 100 can include one or more network devices 101, one or more terminals 103, and a core network device 105. The network device 101 can be a base station, and the base station can be used for communicating with one or more terminals, and can also be used for communicating with one or more base stations having partial terminal functions (such as a macro base station and a micro base station). The base station may be a Base Transceiver Station (BTS) in a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, or may be an evolved base station in an LTE system (Evolutional Node B). , eNB), and base stations in 5G systems, new air interface (NR) systems. In addition, the base station may also be an Access Point (AP), a TransNode (Trans TRP), a Central Unit (CU), or other network entity, and may include some or all of the functions of the above network entities. . The core network device 105 includes an Access and Mobility Management Function (AMF) entity, a User Plane Function (UPF) entity, and a Session Management Function (SMF). . Terminals 103 may be distributed throughout wireless communication system 100, either stationary or mobile. In some embodiments of the present application, the terminal 103 may be a mobile device (such as a smart phone), a mobile station, a mobile unit, an M2M terminal, a wireless unit, a remote unit, a user agent, and a mobile client. and many more.

It should be noted that the wireless communication system 100 shown in FIG. 1A is only for the purpose of more clearly explaining the technical solutions of the present application, and does not constitute a limitation of the present application. Those skilled in the art may know that with the evolution of the network architecture and new services. The appearance of the scenario, the technical solution provided by the present application is equally applicable to similar technical problems.

The related art related to the present application will be described below.

At present, in the fifth generation mobile communication technology (5th-Generation, 5G) and the NR system, for the data replication transmission, in the current discussion of the NR, the data replication transmission has been performed based on the PDCP duplication mode at the same time, thereby improving the reliability of data transmission. NR currently defines two architectures to support data replication transmission: for carrier aggregation (CA), the scheme supporting data duplication uses the PDCP layer's replicated data function to transmit duplicate PDCP PDUs to two. RLC entities (two different logical channels), and finally ensure that the replicated PDCP PDUs can be transmitted on different physical layer aggregated carriers to achieve frequency diversity gain to improve data transmission reliability. The specific protocol structure is as shown in FIG. 1B. The logical channel corresponding to the RLC layer entity of the radio link control layer may be configured with one or a group of cells (groups), and the cells (groups) configured by the two logical channels under the CA duplication are different. This can make the copied PDCP PDUs transmit on different carriers, thereby improving the transmission diversity effect and achieving the current improvement of reliability. In the NR RAN2 discussion, in the discussion of the 99th meeting, the following conclusions were reached: #99Agreements

1.RLC reports maxNumberofRLC retransmissions are reached to RRC.

2.For a logical channel restricted to one or multiple SCell(s)(i.e.logical channel configured for duplication)UE reports the failure to the gNB(e.g.SCell-RLF)but no RRC re-establishment happens.

For the RLC entity, if all the cell groups configured by the corresponding logical channel are secondary cells, when one of the RLC SDUs of the AM RLC is retransmitted to the maximum number of times, the RRC reconfiguration can be triggered without reporting the maximum number of events. , thereby reducing the impact of reconfiguration on the UE. However, there is currently no discussion on how to configure the RLC entity accordingly.

In view of the above problems, the following embodiments are provided in the embodiments of the present application, which are described in detail below with reference to the accompanying drawings.

Referring to FIG. 2, FIG. 2 is a method for processing a radio link failure according to an embodiment of the present application, which is applied to a terminal in the foregoing example communication system, where the terminal includes a logical link control RLC layer entity, and the method includes:

In section 201, the terminal triggers a communication failure process according to the configuration of the RLC layer entity when the RLC layer entity reaches a maximum number of retransmissions.

The retransmission of the RLC service data unit SDU associated with the RLC layer entity is the retransmission of the RLC service data unit SDU processed by the RLC layer entity. counter.

The maximum number of retransmissions may be pre-agreed by the protocol, and the value may be 2, 3, 4, etc., and is not limited herein.

The RLC layer is located between the packet data convergence protocol PDCP layer and the medium access control MAC layer. It communicates with the PDCP layer through a Service Access Point (SAP) and communicates with the MAC layer through a logical channel. Each logical channel of each terminal has an RLC layer entity. The data received by the RLC layer entity from the PDCP layer, or the data sent to the PDCP layer is referred to as an RLC SDU (or PDCP PDU). The data received by the RLC entity from the MAC layer, or the data sent to the MAC layer is called the RLC PDU (or MAC SDU).

The function of the RLC layer is implemented by the RLC entity. An RLC entity can be configured in one of the following three modes: (1) Transparent mode (TransparentMode(TM): Corresponding TM RLC entity, referred to as TM entity. This mode can be considered as an empty RLC because this mode only provides passthrough of data. (2) Unacknowledged mode (UM): Corresponds to the UM RLC entity, referred to as the UM entity. This mode provides all RLC functions except retransmission and re-segmentation, thus providing an unreliable transport service. (3) Real mode AcknowledgedMode (AM): Corresponding to the AM RLC entity, referred to as the AM entity. Through error detection and retransmission, AM mode provides a reliable transport service. This mode provides all RLC functions.

In one possible example, the communication failure includes any of the following:

The radio link fails, the secondary cell group SCG radio link fails, and the secondary cell SCell radio link fails.

The radio link failure is also referred to as a primary cell group MCG radio link failure.

It can be seen that, in this example, the communication failure process includes one of multiple link failure scenarios, that is, in the 5G NR system, the terminal can more accurately initiate the wireless link failure process, and avoids not identifying the wireless chain in time. If the road fails, the interruption delay is too long, the wireless link interruption of the terminal is minimized, and the link failure is restored in time, which is beneficial to improving the reliability of the terminal wireless communication.

In a possible example, the set of carriers configured by the logical channel corresponding to the RLC layer entity includes a primary cell Pcell, and the triggering the communication failure process according to the configuration of the RLC layer entity includes:

The process of triggering a wireless link failure.

In the present possible example, the RLC layer entity refers to a primary radio link control Primary RLC layer entity under the carrier aggregation replication function CA duplication.

The process of triggering the wireless link failure process includes the following steps (1), (2), and (3).

(1) Suspend all radio bearers except the signal radio bearer SRB0 (suspend all RBs except SRB0).

(2) Reset the MAC layer (reset MAC).

(3) Initialize the transmission of the RRC Connection Reestablishment Request message.

It can be seen that, in this example, the carrier set configured for the logical channel corresponding to the RLC layer entity includes the primary cell Pcell, and the terminal can trigger the radio link failure process according to the configuration of the RLC layer entity, and pauses the signal radio bearer other than SRB0. All radio bearers, reset the MAC layer, and initiate the transmission of the RRC connection re-establishment request message, and restore the link failure in time, which is beneficial to improving the reliability of the terminal wireless communication.

In a possible example, the set of carriers configured by the logical channel corresponding to the RLC layer entity includes a primary secondary cell (PSCell); the triggering the communication failure process according to the configuration of the RLC layer entity, including:

The secondary cell group SCG radio link failure process is triggered.

The triggering secondary cell group SCG radio link failure process includes the following steps (4), (5) and (6).

(4) Suspending the transmission of all the secondary cell group data radio data bearers and the separated data bearer secondary cell group parts (suspend all SCG DRBs and suspend SCG transmission for split DRBs).

(5) Reset the secondary cell group MAC layer (reset SCG-MAC).

(6) transmitting a transmission of the secondary cell group radio link failure message to the network (initiate transmission of the SCGFailure Information message in accordance with 5.6.13.3).

It can be seen that, in this example, the carrier set configured by the logical channel corresponding to the RLC layer entity includes the primary and secondary cell PSCell, and the terminal can trigger the secondary cell group SCG radio link failure process according to the configuration of the RLC layer entity, and suspend all the secondary cells. The group data wireless data bearer and the separated data bearer transmit the secondary cell group part, reset the secondary cell group MAC layer, and transmit the secondary cell group radio link failure message transmission to the network, and timely recover the link failure, which is beneficial to improve The reliability of terminal wireless communication.

In one possible example, the set of carriers configured by the logical channel corresponding to the RLC layer entity includes only the SCell; and the triggering the communication failure process according to the configuration of the RLC layer entity, including:

The secondary cell SCell radio link failure report is triggered.

In the present possible example, the RLC layer entity refers to a secondary radio link control secondary RLC layer entity under the carrier aggregation replication function CA duplication.

It can be seen that, in this example, the carrier set configured for the logical channel corresponding to the RLC layer entity only includes the case of the SCell, and the terminal can trigger the failure reporting of the secondary cell SCell radio link according to the configuration of the RLC layer entity, and recover the link failure in time. It is beneficial to improve the reliability of wireless communication of the terminal.

In one possible example, the secondary RLC refers to an RLC layer entity that no longer receives new data of the PDCP layer entity after the carrier aggregation replication function CA duplication of the terminal is deactivated.

In one possible example, the Primary RLC layer entity refers to continuing to receive new data RLC layer entities from the PDCP layer entity after the carrier aggregation replication function CA duplication function of the terminal is deactivated.

Referring to FIG. 3, FIG. 3 is another method for processing a radio link failure according to an embodiment of the present application, which is applied to a terminal in the foregoing example communication system, where the terminal includes a logical chain. The road controls the RLC layer entity, and the method includes:

In the 301 part, when the RLC layer entity reaches the maximum number of retransmissions, the maximum number of retransmissions of the RLC layer reaches a pre-configured maximum retransmission threshold, and the radio link failure process is triggered.

The carrier set configured by the logical channel corresponding to the RLC layer entity includes a primary cell Pcell, and the RLC layer entity refers to a primary radio link control primary RLC layer entity under the carrier aggregation replication function CA duplication.

(2) Reset the MAC layer (reset MAC).

In addition, for the case that the carrier set configured by the logical channel corresponding to the RLC layer entity includes the primary cell Pcell, the terminal can trigger the radio link failure process according to the configuration of the RLC layer entity, and suspend all radio bearers except the signal radio bearer SRB0. The MAC layer is reset, and the transmission of the RRC connection re-establishment request message is initialized, and the link failure is restored in time, which is beneficial to improving the reliability of the terminal wireless communication.

4, FIG. 4 is a method for processing a radio link failure according to an embodiment of the present application, which is applied to a terminal in the foregoing example communication system, where the terminal includes a logical chain. The road controls the RLC layer entity, and the method includes:

In the 401 part, when the RLC layer entity reaches the maximum number of retransmissions, the maximum number of retransmissions of the RLC layer reaches a pre-configured maximum retransmission threshold, and the secondary cell group SCG radio link failure process is triggered.

The carrier set configured by the logical channel corresponding to the RLC layer entity includes a primary secondary cell PSCell, and the RLC layer entity refers to a primary radio link control primary RLC layer entity under the carrier aggregation replication function CA duplication.

The triggering the secondary cell group SCG radio link failure process includes the following steps (3), (4) and (6).

(5) Reset the secondary cell group MAC layer (reset SCG-MAC).

In addition, in the case that the carrier set configured by the logical channel corresponding to the RLC layer entity includes the primary and secondary cell PSCell, the terminal can trigger the secondary cell group SCG radio link failure process according to the configuration of the RLC layer entity, and suspend all the secondary cell group data wireless data. Carrying and separating the data transmission of the secondary cell group part, resetting the secondary cell group MAC layer, and transmitting the secondary cell group radio link failure message transmission to the network, and recovering the link failure in time, which is beneficial to improving the terminal wireless communication. reliability.

With reference to FIG. 5, FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. As shown in the figure, the terminal includes a processor, a memory, a communication interface, and one or more programs. Wherein the one or more programs are stored in the memory and configured to be executed by the processor, the program comprising instructions for performing the following steps;

In one possible example, the maximum number of retransmissions of the RLC layer entity is that the maximum number of retransmissions of the RLC layer reaches a pre-configured maximum retransmission threshold.

In a possible example, the set of carriers configured by the logical channel corresponding to the RLC layer entity includes a primary cell Pcell; in the process of triggering a communication failure according to the configuration of the RLC layer entity, the instruction in the program is specific Used to do the following:

The process of triggering a wireless link failure.

In one possible example, the RLC layer entity refers to a primary radio link control Primary RLC layer entity under the carrier aggregation replication function CA duplication.

In a possible example, the set of carriers configured by the logical channel corresponding to the RLC layer entity includes a primary secondary cell PSCell, and the instruction in the procedure is triggered in the process of triggering a communication failure according to the configuration of the RLC layer entity. Specifically used to do the following:

The secondary cell group SCG radio link failure process is triggered.

In a possible example, the set of carriers configured by the logical channel corresponding to the RLC layer entity includes only the SCell; and the instruction in the program is specifically used in the process of triggering the communication failure according to the configuration of the RLC layer entity. Do the following:

The secondary cell SCell radio link failure report is triggered.

In one possible example, the secondary RLC refers to an RLC layer entity that no longer receives new data of a PDCP layer entity after the carrier aggregation replication function CA duplication of the terminal is deactivated.

The foregoing describes the solution of the embodiment of the present application mainly from the perspective of interaction between the network elements. It can be understood that the terminal and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions. Those skilled in the art will readily appreciate that the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for each particular application to implement the described functionality, but such implementation should not be considered to be beyond the scope of the application.

The embodiments of the present application may perform the division of functional units on the terminal and the network device according to the foregoing method. For example, each functional unit may be divided according to each function, or two or more functions may be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.

In the case of employing an integrated unit, FIG. 6 shows a block diagram of one possible functional unit configuration of the terminal involved in the above embodiment. The terminal 600 includes a processing unit 602 and a communication unit 603. The processing unit 602 is configured to perform control management on the action of the terminal. For example, the processing unit 602 is configured to support the terminal to perform step 201 in FIG. 2, step 301 in FIG. 3, step 401 in FIG. 4, and/or Other processes of the described technology. The communication unit 603 is for supporting communication between the terminal and other devices, such as communication with the network device shown in FIG. The terminal may further include a storage unit 601 for storing program codes and data of the terminal.

The processing unit 602 can be a processor or a controller, and can be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific). Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The communication unit 603 may be a transceiver, a transceiver circuit, or the like, and the storage unit 601 may be a memory.

The processing unit 602 is configured to trigger a communication failure process according to the configuration of the RLC layer entity when the RLC layer entity reaches a maximum number of retransmissions by using the communication unit 603.

It can be seen that, in the embodiment of the present invention, when the RLC layer entity reaches the maximum number of retransmissions, the terminal triggers a communication failure process according to the configuration of the RLC layer entity. The configurations of different RLC entities may be different, so that the terminal can distinguish different RLC layer entity configurations to trigger different radio link failure processes, so as to minimize the radio link interruption of the terminal and timely fail the link. Recovery is beneficial to improve the reliability of wireless communication of the terminal.

In a possible example, the set of carriers configured by the logical channel corresponding to the RLC layer entity includes a primary cell Pcell; and the processing unit 602 is specifically used in the process of triggering a communication failure according to the configuration of the RLC layer entity. On: Trigger the wireless link failure process.

In a possible example, the set of carriers configured by the logical channel corresponding to the RLC layer entity includes a primary secondary cell PSCell, and the processing unit 602 is specific to the process of triggering a communication failure according to the configuration of the RLC layer entity. Used to: trigger the secondary cell group SCG radio link failure process.

In a possible example, the set of carriers configured by the logical channel corresponding to the RLC layer entity includes only the SCell; and the processing unit 602 is specifically used to trigger the communication failure process according to the configuration of the RLC layer entity. : The secondary cell SCell radio link failure report is triggered.

When the processing unit 602 is a processor, the communication unit 603 is a communication interface, and the storage unit 601 is a memory, the terminal involved in the embodiment of the present application may be the terminal shown in FIG. 6.

The embodiment of the present application further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute a terminal as in the above method embodiment Some or all of the steps described.

The embodiment of the present application further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute a network in the method embodiment as described above Some or all of the steps described by the device.

The embodiment of the present application further provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform the method embodiment as described above Some or all of the steps described in the terminal. The computer program product can be a software installation package.

The embodiment of the present application further provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform a network as in the above method Some or all of the steps described by the device. The computer program product can be a software installation package.

The steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented by a processor executing software instructions. The software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.

Those skilled in the art should appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (DVD)), or a semiconductor medium (for example, a solid state disk (SSD)). )Wait.

The specific embodiments of the present invention have been described in detail with reference to the embodiments, technical solutions and advantages of the embodiments of the present application. It should be understood that the foregoing description is only The scope of the present invention is defined by the scope of the present invention, and any modifications, equivalents, improvements, etc., which are included in the embodiments of the present application, are included in the scope of protection of the embodiments of the present application.

Claims

A radio link failure processing method, which is applied to a terminal, where the terminal includes a logical link control RLC layer entity, and the method includes:

When the RLC layer entity reaches the maximum number of retransmissions, the communication failure process is triggered according to the configuration of the RLC layer entity.
The method of claim 1 wherein said communication failure comprises any one of the following:

The radio link fails, the secondary cell group SCG radio link fails, and the secondary cell SCell radio link fails.
The method according to claim 1 or 2, wherein the maximum number of retransmissions of the RLC layer entity is that the number of retransmissions of the RLC layer data reaches a pre-configured maximum retransmission threshold.
The method according to any one of claims 1-3, wherein the set of carriers configured by the logical channel corresponding to the RLC layer entity includes a primary cell Pcell; and the triggering of the communication failure according to the configuration of the RLC layer entity Process, including:

The process of triggering a wireless link failure.
The method according to claim 4, wherein the RLC layer entity refers to a primary radio link control Primary RLC layer entity under a carrier aggregation replication function CA duplication.
The method according to any one of claims 1-3, wherein the set of carriers configured by the logical channel corresponding to the RLC layer entity includes a primary secondary cell PSCell; the triggering communication according to the configuration of the RLC layer entity Failure process, including:

The secondary cell group SCG radio link failure process is triggered.
The method according to claim 6, wherein the RLC layer entity refers to a primary radio link control Primary RLC layer entity under a carrier aggregation replication function CA duplication.
The method according to any one of claims 1-3, wherein the set of carriers configured by the logical channel corresponding to the RLC layer entity includes only the SCell; and the triggering the communication failure process according to the configuration of the RLC layer entity ,include:

The secondary cell SCell radio link failure report is triggered.
The method according to claim 8, wherein the RLC layer entity refers to a primary radio link control Primary RLC layer entity under a carrier aggregation replication function CA duplication.
The method according to claim 8, wherein the RLC layer entity refers to a secondary radio link control secondary RLC layer entity under a carrier aggregation replication function CA duplication.
The method according to claim 10, wherein the secondary RLC refers to an RLC layer entity that does not receive new data of a PDCP layer entity after the carrier aggregation replication function CA duplication of the terminal is deactivated.
The method according to claim 5 or 7 or 9, wherein the Primary RLC layer entity refers to continuing to receive new data from the PDCP layer entity after the carrier aggregation replication function CA duplication function of the terminal is deactivated. RLC layer entity.
A terminal, which is applied to a terminal, the terminal includes a service data adaptation protocol SDAP layer entity, and the terminal includes a processing unit and a communication unit,

The processing unit is configured to trigger a communication failure process according to the configuration of the RLC layer entity when the RLC layer entity reaches a maximum number of retransmissions by using the communication unit.
The terminal according to claim 13, wherein the communication failure comprises any one of the following:

The radio link fails, the secondary cell group SCG radio link fails, and the secondary cell SCell radio link fails.
The terminal according to claim 13 or 14, wherein the maximum number of retransmissions of the RLC layer entity is that the number of retransmissions of the RLC layer data reaches a pre-configured maximum retransmission threshold.
The terminal according to any one of claims 13 to 15, wherein the set of carriers configured by the logical channel corresponding to the RLC layer entity includes a primary cell Pcell; and the communication is triggered according to the configuration of the RLC layer entity. In terms of the failure process, the processing unit is specifically configured to: trigger a radio link failure process.
The terminal according to claim 16, wherein the RLC layer entity refers to a primary radio link control Primary RLC layer entity under the carrier aggregation replication function CA duplication.
The carrier set configured by the logical channel corresponding to the RLC layer entity includes a primary and secondary cell PSCell; and the processing unit is specifically configured to: trigger the secondary cell group SCG in the process of triggering the communication failure according to the configuration of the RLC layer entity The wireless link fails.
A terminal, comprising: a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, The program comprises instructions for performing the steps in the method of any of claims 1-12.
A computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method of any of claims 1-12.